The invention relates to agricultural machinery, namely, pneumatic seeders with central dispensing of seeds and fertilizers. Rotor collector - distributor of pneumatic grain drills aimed at improving the uniformity of the distribution of seed material for openers. The utility model comprises a vertical inlet pipe, a centering device and a distributor head with outlet pipes. Centering device of seed material is in the form of a converging tube with a fine-meshed metal net curvilinear generators (R, r) and is mounted in the vertical supply pipe collector-distributor. The shape of the centering device is formed by a smooth transition from a larger to a smaller cross section, as well as rounding rectilinear wall outlet in a straight portion (l pr.uch.) - Inlet diameter fits snugly to the inner wall of the vertical supply pipe. The optimum fillet radius rectilinear wall of the centering device in the range: R = (0,5 ... 1) · d O where O d - exit diameter of the centering device, mm. The length of the centering device in the range: l ts.u = (1 ... 1,5) · D Rin, where - the inlet diameter of the centering device, mm. The use of the centering device of seed material formed as a converging tube of the fine-mesh metal screen, allows fully encompass and configure incoming seeded material into tight and direct the flow into the center of the distributor head with outlet pipes. When fade-out section converging tube, the flow comes off from the walls at the transition to the straight section and the pressure losses are reduced only to the friction losses in the tapered portion, which will increase the speed of conveyance of seed material and spread uniformly on the coulters.Полезная модель относится к сельскохозяйственному машиностроению, а именно к пневматическим сеялкам с центральным дозированием семян и минеральных удобрений. Пневмомеханический коллектор - распределитель пневматической зерновой сеялки направлен на повышение равномерности распределения высеваемого материала по
